Asked by anon

Homozygous tall (TT) pea plants look the same as heterozygous tall (Tt) pea plants. Formulate a pollination experiment to identify whether a tall pea plant is homozygous or heterozygous. Explain your answer in 3-5 sentences.(4 points)

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Answered by GPT-5 mini
Perform a test cross by pollinating the unknown tall plant with a homozygous recessive dwarf plant (tt). If the tall parent is homozygous (TT), all offspring will inherit a T and therefore be tall. If the tall parent is heterozygous (Tt), about half the offspring will inherit t from the tall parent and be dwarf, giving a ~1:1 ratio of tall to dwarf progeny. Observing the offspring heights reveals the genotype of the original tall plant.